Summary:
- This article discusses a new type of hydrogel-based material that can be used to create unclonable tags or labels. These tags are difficult to replicate or forge, making them useful for authentication and anti-counterfeiting applications.
- The hydrogel material contains randomly distributed magnetic particles that create a unique pattern when scanned. This pattern is like a fingerprint that can be used to identify the tag and verify its authenticity.
- The researchers believe these hydrogel tags could be used to secure important documents, products, or even electronic devices against counterfeiting or tampering. The tags are inexpensive to produce and can be easily integrated into various applications.